Windows 操作系统（不管32bit还是64bit）是不支持oracle db的 db_32k_cache_size参数的。

本文链接：https://blog.youkuaiyun.com/msdnchina/article/details/45848331

本文介绍了在Windows操作系统中使用Oracle数据库时遇到的问题：尝试设置db_32k_cache_size参数失败，并创建32KB大小的表空间也遭到拒绝。Oracle在Windows平台上不支持32KB的缓存大小。

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Windows 操作系统（不管32bit还是64bit）是不支持oracle db的 db_32k_cache_size参数的。

如下：

F:\oracle\product\10.2.0\db_1\BIN>sqlplus / as sysdba

SQL*Plus: Release 10.2.0.4.0 - Production on Tue May 19 09:03:23 2015

Copyright (c) 1982, 2007, Oracle.  All Rights Reserved.


Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

09:03:27 sys@FS> show parameter inst

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
active_instance_count                integer
cluster_database_instances           integer     1
instance_groups                      string
instance_name                        string      fs
instance_number                      integer     0
instance_type                        string      RDBMS
open_links_per_instance              integer     4
parallel_instance_group              string
parallel_server_instances            integer     1
09:03:31 sys@FS> show parameter 32k

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
db_32k_cache_size                    big integer 0
09:03:37 sys@FS> alter system set db_32k_cache_size=10m;
alter system set db_32k_cache_size=10m
*
ERROR at line 1:
ORA-32017: failure in updating SPFILE
ORA-00382: 32768 not a valid block size, valid range [..]


Elapsed: 00:00:00.09
09:03:48 sys@FS> create tablespace tbs32K
16:43:28   2  datafile 'c:\tbs32K.dbf' size 4M
16:43:28   3  blocksize 32k;
create tablespace tbs32K
*
ERROR at line 1:
ORA-00382: 32768 not a valid block size, valid range [2048..16384]


Elapsed: 00:00:00.40
16:43:30 sys@FS>